Re: [PATCH v3 2/4] tests/tcg/s390x: Test CONVERT TO DECIMAL
On 01/02/2024 00.07, Ilya Leoshkevich wrote: Check the CVD's and CVDG's corner cases. Signed-off-by: Ilya Leoshkevich --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/cvd.c | 45 + 2 files changed, 46 insertions(+) create mode 100644 tests/tcg/s390x/cvd.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 30994dcf9c2..04e4bddd83d 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -45,6 +45,7 @@ TESTS+=clc TESTS+=laalg TESTS+=add-logical-with-carry TESTS+=lae +TESTS+=cvd cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread diff --git a/tests/tcg/s390x/cvd.c b/tests/tcg/s390x/cvd.c new file mode 100644 index 000..c1fb63ca9a6 --- /dev/null +++ b/tests/tcg/s390x/cvd.c @@ -0,0 +1,45 @@ +/* + * Test the CONVERT TO DECIMAL instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include + +static uint64_t cvd(int32_t x) +{ +uint64_t ret; + +asm("cvd %[x],%[ret]" : [ret] "=R" (ret) : [x] "r" (x)); + +return ret; +} + +static __uint128_t cvdg(int64_t x) +{ +__uint128_t ret; + +asm("cvdg %[x],%[ret]" : [ret] "=T" (ret) : [x] "r" (x)); + +return ret; +} + +int main(void) +{ +__uint128_t m = (((__uint128_t)0x9223372036854775) << 16) | 0x8070; + +assert(cvd(0) == 0xc); +assert(cvd(1) == 0x1c); +assert(cvd(-1) == 0x1d); +assert(cvd(0x7fff) == 0x2147483647c); +assert(cvd(-0x7fff) == 0x2147483647d); + +assert(cvdg(0) == 0xc); +assert(cvdg(1) == 0x1c); +assert(cvdg(-1) == 0x1d); +assert(cvdg(0x7fff) == (m | 0xc)); +assert(cvdg(-0x7fff) == (m | 0xd)); + +return EXIT_SUCCESS; +} Reviewed-by: Thomas Huth
[PATCH v3 2/4] tests/tcg/s390x: Test CONVERT TO DECIMAL
Check the CVD's and CVDG's corner cases. Signed-off-by: Ilya Leoshkevich --- tests/tcg/s390x/Makefile.target | 1 + tests/tcg/s390x/cvd.c | 45 + 2 files changed, 46 insertions(+) create mode 100644 tests/tcg/s390x/cvd.c diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 30994dcf9c2..04e4bddd83d 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -45,6 +45,7 @@ TESTS+=clc TESTS+=laalg TESTS+=add-logical-with-carry TESTS+=lae +TESTS+=cvd cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread diff --git a/tests/tcg/s390x/cvd.c b/tests/tcg/s390x/cvd.c new file mode 100644 index 000..c1fb63ca9a6 --- /dev/null +++ b/tests/tcg/s390x/cvd.c @@ -0,0 +1,45 @@ +/* + * Test the CONVERT TO DECIMAL instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include + +static uint64_t cvd(int32_t x) +{ +uint64_t ret; + +asm("cvd %[x],%[ret]" : [ret] "=R" (ret) : [x] "r" (x)); + +return ret; +} + +static __uint128_t cvdg(int64_t x) +{ +__uint128_t ret; + +asm("cvdg %[x],%[ret]" : [ret] "=T" (ret) : [x] "r" (x)); + +return ret; +} + +int main(void) +{ +__uint128_t m = (((__uint128_t)0x9223372036854775) << 16) | 0x8070; + +assert(cvd(0) == 0xc); +assert(cvd(1) == 0x1c); +assert(cvd(-1) == 0x1d); +assert(cvd(0x7fff) == 0x2147483647c); +assert(cvd(-0x7fff) == 0x2147483647d); + +assert(cvdg(0) == 0xc); +assert(cvdg(1) == 0x1c); +assert(cvdg(-1) == 0x1d); +assert(cvdg(0x7fff) == (m | 0xc)); +assert(cvdg(-0x7fff) == (m | 0xd)); + +return EXIT_SUCCESS; +} -- 2.43.0